Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?
AgO
Al2O3
ZnCl2
Fe2O3
Correct Answer :
A. AgO
Related Questions
Naphthalene is removed from coke oven gas by
Adsorbing on palladium
Absorbing in ethanolamine
Scrubbing with wash oil
Passing it through electrostatic precipitator
Oils and fats are converted to soap in a process called
Hydrogenation
Esterification
Saponification
None of these
Ore concentration by froth floatation utilises the __________ of ore particles.
Density difference
Wetting characteristics
Terminal velocities
None of these
The enzyme which converts starch into the disaccharides maltose is
Diastase
Maltase
Yeast
None of these
Plasticisers are added to paints to
Make it corrosion resistant
Make glossy surface
Give elasticity & prevent cracking of the film
Increase atmospheric oxidation
Main constituent of dolomite is
CaCO3
MgCO3
K2CO3
Na2CO3
Pick out the wrong statement.
Azoic dyes are mostly applied on cotton fabrics
Basic dyes (e.g. amino derivatives) are applied mostly to paper
Mordant dyes are applied mainly to wools
None of these
Production of alcohol by fermentation of molasses is a/an __________ process.
Anaerobic
Aerobic
Endothermic
Both (B) and (C)
Commercial production of calcium carbide requires limestone and __________ as raw materials.
Coke
Sand
Soda ash
Fuel oil
Phthalic anhydride is made by the
Oxidation of naphthalene
Oxidation of benzene
Dehydrogenation of ethyl benzene
None of these
Viscose rayon
Cannot be made from sulphite pulp
Utilises H2SO4, NaOH and CS2 during its manufacture
Cannot yield textile grade fibre
None of these
Silicone is a/an
Thermoplastic
Inorganic polymer
Monomer
None of these
Alkylbenzene sulfonate (ABS) is a
Detergent
Rubber
Pesticide
Polyester
Penicillin is separated from fermented broth by
Extraction with amyl or butyl acetate
Ternary Azeotropic distillation
Evaporator in calandria
Extractive distillation
The product obtained on mixing calcium oxide with water is called
Quicklime
Slaked lime
Milk of lime
None of these
Enzymes are organic catalysts used in the __________ reactions.
Chemical
Biochemical
Photochemical
Electrochemical
Superior quality laboratory apparatus is made of the __________ glass having low thermal coefficient of expansion & high chemical resistance.
Flint
Soda
Pyrex
Potash
Hydrazine is largely used
As a starting material for 'hypo'
In photographic industry
As rocket fuel
In printing industry
The process involved in converting rubber into a thin sheet or coating it on fabric is called
Extrusion
Mastication
Calendaring
Vulcanisation
Cumene is the starting material for the production of
Benzoic acid
Phenol and acetone
Isoprene
Styrene
Direct conversion of chemical energy into electrical energy is done in a
Magnetohydrodynamic (MHD) generator
Fuel cell
Fast breeder reactor
None of these
Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material?
Slag cement
Glasses
Porcelain/Potteries
Teflon
Catalytic oxidation of toluene produces
Styrene
Phenol
Benzene
Tri-nitro-toluene
Catalytic oxidation-dehydrogenation of methyl alcohol produces
Formaldehyde
Phenol
Acetone
Maleic anhydride
Solvent used for extraction of oil is
Hexane
Methyl ethyl ketone
Furfural
None of these
Coke used for the production of calcium carbide should have
Low ash content
Low ignition temperature
High electrical resistivity
All (A), (B) and (C)
Massecuite is a terminology used in the __________ industry.
Paint
Oil hydrogenation
Soap
Sugar
Cumene (isopropyl benzene) is made by
Oxidation of naphthalene
Propylene alkylation of benzene
Polymerisation of a mixture of benzene & propylene
None of these
The most stable allotropic form of phosphorous is the __________ phosphorous.
White
Black
Yellow
Red
Sand and __________ is fused at 1300°C, to produce sodium silicate.
Limestone
Soda ash
Coke
Sodium sulphate